Hi I wonder if anyone can shed light on the potential of geoengineering in a high GHG atmosphere ?
If we have massive methane excursions from the arctic, will we be able to create a safe climate? The paleoclimatic record shows dramatic cooling through volcanism, but that wasn't in a high GHG world . If there's a whole load of methane around, there will be a massive polar amplification. This reduces the ocean over turning circulation , and potentially lead to an anoxic event, and possibly further methanogenesis. I am not sure that, even with a maximal SRM effort, we can avoid the climate transitioning into a state in which society is unsustainable due to an anoxic event. If this is the case, we potentially have a very brief window in which to geoengineer, perhaps only five or ten years I'd value comments on this. Thanks A -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en.
